Adox ADOFILE 35mm Negative sheets are made of high-grade polypropylene.

They are 1-2cm oversized, so that a strip of 6 x 35mm film negatives fits completely into the sleeve without any overhang.

The pages fit in both 3 ring and 4 ring binders. Both ends of the negative sleeves are open, allowing for air exchange. The polypropylene is absolutely chemically neutral and archive-safe.

It is also stable, tear-proof and perfectly clear for easy contact-printing.

Polypropylene files are more stable than those made from acetate and thus easier to load. The slight difference in thickness leads to a theoretical lower resolution of a contact print through the file though (compared to the thinner acetate sleeves).